abdómen

n. section of the body between the thorax and the pelvis in which most of the digestive organs are located, belly (in vertebrates) ; section of the body behind the thorax (Entomology)

The abdomen is the part of the body that lies between the chest and the thigh and encloses the ureters, intestines, liver, anus, bladder, gallbladder, and reproductive system outside the breast. It is also called the belly or venter. In humans, and in many other vertebrates, it is the region between the thorax and the pelvis (Separating the thoracic cavity and the abdominal cavity is the thoracic diaphragm). In fully developed insects, the abdomen is the third (or posterior) segment, after the head and thorax.
See more at Wikipedia.org...

Abdomen /ab·do·men/ that part of the body lying between the thorax and the pelvis, and containing the abdominal cavity and viscera. [more]Abdomen - Community and Resources

Noun
1. the region of the body of a vertebrate between the thorax and the pelvis
(synonym) venter, stomach, belly
(hypernym) body part
(hyponym) underbelly, underbody
(part-holonym) torso, trunk, body
(part-meronym) abdominal aorta
2. the cavity containing the major viscera; in mammals it is separated from the thorax by the diaphragm
(synonym) abdominal cavity
(hypernym) cavity, bodily cavity, cavum
(part-holonym) venter, stomach, belly

n. abdomen, belly, stomach area